Join Date: Jul 2003
Location: Charlotte, NC, USA.
While I know it's not "ready made", you could get a single AH Supply kit - one of the 2x55's. They also sell finished canopies, which would get you to "ready to use".
But I think it would be double your budget. $60 for kit, $20x2 for bulbs and whatever the canopy is - $20? $30? Already double the high end.
I'd keep your existing lights and add additional lights. That way you can replace the old lights with another 2x55 kit when you get another chunk of change to spend.
I think finding something used, ebay, aquabid, etc would be a place to look for stuff, though it might take some looking. Good luck!